Endress+Hauser Proline 500, Краткое руководство по эксплуатации

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Electrical connection Flowmeter Proline 500 – digital
16 Hauser
5.2.3 Connecting cable
Non-hazardous area, Ex Zone 2, Class I, Division 2
Standard cable
A standard cable can be used as the connecting cable.
Standard cable 4 cores (2 pairs); pair-stranded with common shield
Shielding Tin-plated copper-braid, optical cover ≥ 85 %
Loop resistance Power supply line (+, –): maximum 10 Ω
Cable length Maximum 300 m (1 000 ft), see the following table.
Cross-section Cable length
0.34 mm
2
(AWG 22) 80 m (270 ft)
0.50 mm 2 (AWG 20) 120 m (400 ft)
0.75 mm 2 (AWG 18) 180 m (600 ft)
1.00 mm 2 (AWG 17) 240 m (800 ft)
1.50 mm
2
(AWG 15) 300 m (1 000 ft)
Hazardous area, Ex Zone 1, Class I, Division 1
Standard cable
A standard cable can be used as the connecting cable.
Standard cable 4, 6, 8 cores (2, 3, 4 pairs); pair-stranded with common shield
Shield Tin-plated copper braid, optical cover ≥ 85 %
Capacitance C Maximum 760 nF IIC, maximum 4.2 µF IIB
Inductance L Maximum 26 µH IIC, maximum 104 µH IIB
Inductance/resistance ratio
(L/R) Maximum 8.9 µH/Ω IIC, maximum 35.6 µH/Ω IIB (e.g. according to IEC 60079-25)
Loop resistance Power supply line (+, –): maximum 5 Ω
Cable length Maximum 150 m (500 ft), see the following table.